Honeywell 31-80100 Co2 GPT XC, Filter 100 OD&gt;9 @ 190-360nm OD&gt;5 @ 9000-11100nm OD&gt;7 @ 10600nm Polymer filters are designed to maximize visibility while providing unsurpassed attenuation by narrowing the absorption band to the specific laser wavelengths Meets ANSI Z136.1, CE EN207